Locomotive blow-off system



Nov. 27, 192-3.

' S. OTIS LOCOMOTIYVE BLOW-OFF SYSTEM Filed Feb. 5, i921 2 Sheets-Sheet 1 Nov. 27 1923.

- S. OTIS LOGOMOTIVE BLOW-OFF SYSTEM Filed Feb. 5, 1921 2 Sheets-Sheet 2 orrice.

SPENCER- OTIS,

CF CHICAGO, ILLINOIS.

Application filed February 5, 1921.

To all to/mm it may camera.

Be it known that l Sriirzcnn (Eris. a citizen of the United Stat-es icsiding at Chicago, in the county oi Cook and State of Illinois. have invented certain new and useful Improvements in a Locomotive. Blow- Ofi System, of which the following is a specification.

This invention relates to a sy tem by which to blow oil steam, water, sludge and the like from steam boilers, and is designed primarily for blowing off locomotive boilers.

The object of the invention is to provide a simple, eflicient and inexpensive which may be arranged for use in situations where it is not desired to save the products blown off but merely to discharge the same under conditions which will not be objectionable in the roundhouse or other place of discharge.

Accordingly, the invention co 'sts in provldlng a blowotl pipe adapted ior convenient connection with the boiler to be blown off, and preferably consisting of standpipe with a crane extension through which it connects with the boiler, and having its crane extension swiveled so that it can connect with boilers in diiierent situa tions; said blowotl pipe being connected with a drain through which the products may be discharged; a coldwater pipe discharging into the blowofl pipe in a relation which adapts the cold water to condense steam in the blowott pipe. and. preferably. a vented steam separator interposed in the drain and through which uncondensed steam may be discharged in order to prevent injury that might be caused otherwise to a sewer to which the drainage leads.

In the accompanying drawings.,-

Figure 1 is a diagrammatic view of a portion of a roundhouse equipped with a blowoff system embodying the features or" the present invention;

Figure 2 is a detail view of the vented steam separator which enters into the organization of the system shown in Figure 1;

Figure 3 is a view in elevation of the blowoil pipe and its cold water connection forming a part of the system; and

Figure 4 is sectional detail view of the ejector and baclnlow checking connection between the cold water pipe and the blowofi' pipe. 7

Referring to Figure 1 A represents tracks Serial no. 442,647.

or stalls for locomotives arranged in annular series and in radial relation to a central turntable C represents a series of blow off pipes each located between two tracks or stalls and in position to serve the stall on either side of it; and DD represents the drain pipe which may lead through the outlet D at the center of the turn table pit to the sewer connection D Interposed in the drainage system DD is a steam separator E having a vent F which willpermit the escape of steam entering thereinto in volume which would be objectionable in the sewer. As shown in Figure 2. the steam separating chamber E has in addition to its venting stack F an inlet pipe D and a discharge valve G having a manipulating connection H in controlling relation to the outlet D by means of which the discharge of water and sludge from the blowoii products may be retarded until a sufiicient proportion of the steam has been vented through the stack F to make it safe to discharge the products into the sewer.

Referring to Figure 3 the blowott pipe- (7 embodies in its construction a standpipe C and a crane extension C carrying at its outer end a flexible connector C through which it communicates with a boiler, as suggested for instance at X. The standpipe C is swiveled to the blowoff pipe (l at O its upper end being guided in a bearing C and this adapts the crane extension C to swing from one position to another; for to swing about the interiu qiate position (I of Figure 1 to the track A on either side o it and thus adapt each standpipe to serve two locomotives.

In order to condense steam to greatly r duce the violence of the d'scharge into the separating chamber E, cold water pipe K is connected with the blowotf pipe C in such relation that the cold water delivered to the latter will condense steam coming off from the locomotive, and to render this more effective, such connection is made through the medium of an ejector K. Such connection is also provided with the backtlow check valve K so that in the event of chokage or obstruction in the outlet of the blown-oft products there will be no How backward through the pipe K.

I claim:

1. In a blowofi system for steam boilers, a blowofi' pipe a drain recei ing discharge therefrom, and a coldwater pipe delivering into said blowoit pipe, in i lation lo condense the steam flowing th'erethrough.

2-. In a blowotl system for st in l' filers, a blowofi pipe, a drain receiving [.7 therefrom, and a coldwater pipe having an ejector connection through which delivers into said blowofi' pipe, in relation to condense the steam flowing therethrough.

3. In a blOWQfi system 'for steam boile s, blowofl pipe, a drain receiving discharge therefrom, and a coldwater pipe having an ejecting and baclniow checking connection through which it delivers into s"'l lJlOWOfE pipe, in relation to coneense the seam fiowing therethrough.

4. In. a blowoti system for sic; boilers a blowofif pipe, a drain receivim" recharge therefrom, and a coldwater pipe telivering thereto, in relation to condense the steam flowing therethroiigh; said blowofi pipe including a standpipe and a crane extension through which it connects with the boiler.

5.- In a blowofi" system for steam boilers, a blowofi' pipe, a drain receiving discha ge therefrom, and a coldwater pip, (lfill'i thereto, in relation to condens f flowing therethrengh; said blowotl pipe in eluding a standpipe and a crane extension through which it conn; ts with the boiler; said crane being adapted to swing to different positions for communication with difierent boilers.

6. A blowoff system for locomotives comprising; a plurality of locomotive stalls, a blowofl' pipe located intermediately of said stalls and comprising a stanc pipe and a. extension swiveling about the axis of the st'indpipe and adapted to make connection with a locomotive in either of said stalls, a drain receiving pipe receiving blowofi' products from said standpipe, and a coldwater pipe delivering to said blowoft pipe in steam condensing relation thereto.

7. in a blowo'lt system for steam boilers, a

blowotl pipe, a drain receiving discharge therefrom a coldwater 3138 deliverino; into said olowoff pipe, in l'tldLlOll to conoc-nse thev steam flowing therethrongh, and a vented steam separating chamber interposed in said drain beyond the delivery point oi said col dwater pipe.

8. in a locomotive roundhouse, stalls for locomotives, a drainage system for blowofi products including a vented steam separator. drainage pipes leading from a plurality of stalls to said separating chamber, stand- ;iipes located between stalls discharging into the respective drainage pipes, and having means for establishing blowoit connection with locomotives in the stalls, and coldwater pipes connecting with the respective stand-- pipes in relation to condense steam flowing therethrough.

Signed at Chicago, Illinois, this 81st day of January, 1921.

srnnonie orrs. 

